阅读说明：本技术 一种防伪膜、防伪膜生产工艺及应用该防伪膜的防伪纸 (Anti-counterfeiting film, anti-counterfeiting film production process and anti-counterfeiting paper using anti-counterfeiting film ) 是由 朱立纲 陈洋 于贤保 刘伟 于 2019-08-27 设计创作，主要内容包括：本发明防伪包装技术领域,更具体地说,它涉及一种防伪膜、防伪膜生产工艺及应用该防伪膜的防伪纸,通过涂覆、模压和固化的步骤,让光学层成型,再最后上一层防护层,形成防伪膜,最后将防伪膜附着在底纸上形成防伪纸,防护膜的作用能够让光学层在最终的使用时不会受到影响而损坏,同时采用光学原理对图文进行形变,从而提高其防伪效果。(The invention relates to the technical field of anti-counterfeiting packaging, in particular to an anti-counterfeiting film, an anti-counterfeiting film production process and anti-counterfeiting paper applying the anti-counterfeiting film.)

1. The anti-counterfeiting film comprises a base film (1) and is characterized in that an optical layer (2) and a protective layer (3) are respectively arranged on the base film (1), the optical layer (2) comprises a plurality of protruding structures, and the protective layer (3) is laid on the protruding structures.

2. The anti-counterfeiting film according to claim 1, wherein the refractive index of the optical layer (2) is greater than or less than the refractive index of the protective layer (3).

3. The anti-counterfeiting film according to claim 2, wherein the optical layer (2) and the protective layer (3) are respectively formed by coating with a transparent paint.

4. The production process of anti-fake film features that the following steps are adopted,

s1, coating, namely coating a layer of transparent paint on the base film (1) to form a coating layer;

s2, die pressing, rolling the coating layer to form a protrusion to form the optical layer (2);

s3, curing, namely curing the transparent coating of the optical layer (2);

s4, covering a protective layer (3) on the cured optical layer (2) by using the protective layer (3).

5. The process for producing an anti-counterfeiting film according to claim 4, wherein the transparent coating in the S1 is formed by a UV light curing coating, and the S3 is cured by exposure curing.

6. The process for producing an anti-counterfeiting film according to claim 4, wherein the protective layer (3) is formed by coating with a clear paint in step S4, and the refractive index of the clear paint used for the protective layer (3) is greater than or less than the refractive index of the clear paint used for the optical layer (2).

7. The process for producing an anti-counterfeiting film according to claim 4, wherein an embossing roller and a supporting roller (62) are provided during the molding process, and the base film (1) passes through between the supporting roller (62) and the embossing roller.

8. The anti-counterfeiting paper is characterized by comprising base paper and an anti-counterfeiting film attached to the base paper, wherein the anti-counterfeiting film adopts the anti-counterfeiting film according to any one of claims 1 to 3.

Technical Field

The invention relates to the technical field of anti-counterfeiting packaging, in particular to an anti-counterfeiting film, an anti-counterfeiting film production process and anti-counterfeiting paper using the anti-counterfeiting film.

Background

The anti-fake film is used in the process of preventing fake and fake product and can be used in the verification of product to reduce the fake amount. Most of the existing anti-counterfeiting films adopt special designs of patterns for anti-counterfeiting, and the anti-counterfeiting films are easy to counterfeit after the patterns are published, and have poor anti-counterfeiting effect, so that a new anti-counterfeiting technology needs to be provided.

Disclosure of Invention

In view of the shortcomings of the prior art, an object of the present invention is to provide an anti-counterfeit film, which has a pattern structure different from that of the prior art due to different angles of the pattern through an optical layer, so as to achieve a better anti-counterfeit effect.

In order to achieve the purpose, the invention provides the following technical scheme:

the anti-counterfeiting film comprises a base film, wherein an optical layer and a protective layer are respectively arranged on the base film, the optical layer comprises a plurality of protruding structures, and the protective layer is laid on the protruding structures.

Through the technical scheme, the optical layer is set into a plurality of protruding structures, let it form the convex lens structure, when using, let it compound with the paper, perhaps directly print on the membrane, after forming picture and text, let convex lens can refract it, and then the picture and text of seeing can be according to the difference of angle and transform to some extent, and then reach anti-fake purpose, and adopt the setting of protective layer, let protruding structure can not receive wearing and tearing, it is longer to let its life-span of using, thereby anti-fake effect is better.

The invention is further configured to: the optical layer has a refractive index greater than or less than a refractive index of the protective layer.

Through above-mentioned technical scheme, through the setting that the refracting index is different, let its light-emitting angle inequality, and then let whole pattern can take place deformation, improve its anti-fake effect.

The invention is further configured to: the optical layer and the protective layer are respectively formed by coating transparent paint.

Through above-mentioned technical scheme, adopt transparent coating to coat, it can carry out better inseparable combination with the optical layer, and then lets its protruding structure more stable.

The second purpose of the invention is to provide a production process of an anti-counterfeiting film, which adopts the following technical scheme:

a production process of an anti-counterfeiting film adopts the following processes,

s1, coating, namely coating a layer of transparent paint on the base film to form a coating layer;

s2, die pressing, rolling the coating layer to form a protrusion to form an optical layer;

s3, curing, namely curing the transparent coating of the optical layer;

and S4, covering a protective layer on the cured optical layer.

The invention is further configured to: the transparent coating in the S1 is formed by UV light curing coating, and S3 is cured by exposure curing.

The invention is further configured to: the protective layer is formed by coating with a transparent paint in step S4, and the refractive index of the transparent paint used for the protective layer is greater than or less than that of the transparent paint used for the optical layer.

The invention is further configured to: an embossing roller and a supporting roller are arranged in the mould pressing process, and the base film penetrates through the supporting roller and the embossing roller.

Through the technical scheme, the optical layer is formed through the steps of coating, mould pressing and curing, and the optical layer is not affected and damaged in the final use process due to the fact that the protective layer is arranged at the end.

The second purpose of the invention is to provide anti-counterfeiting paper, which has the following technical scheme:

the anti-counterfeiting paper comprises base paper and an anti-counterfeiting film attached to the base paper, wherein the anti-counterfeiting film is adopted.

Through the technical scheme, the anti-counterfeiting film can finally refract the pictures and texts on the paper through the structure of the anti-counterfeiting paper, so that the anti-counterfeiting film is more convenient to use.

In conclusion, the invention has the following beneficial effects:

(1) the optical layer is provided with a plurality of convex structures to form convex lens structures, and the arrangement of the protective layer prevents the convex structures from being worn, so that the anti-counterfeiting effect is better;

(2) by adopting the transparent coating for coating, the optical layer can be better and tightly combined with the optical layer, so that the protruding structure of the optical layer is more stable;

(3) the optical layer is formed through the steps of coating, mould pressing and curing, and then a protective layer is coated on the optical layer, so that the optical layer cannot be influenced and damaged in the final use process.

Drawings

FIG. 1 is a basic structure diagram of an anti-counterfeiting film;

FIG. 2 is a view showing a structure of a final molding of an anti-counterfeit film according to example 4;

FIG. 3 is a process diagram of an anti-counterfeiting film;

FIG. 4 is a view showing the structure of a backup roll;

reference numerals: 1. a base film; 2. an optical layer; 21. salient points; 3. a protective layer; 4. a protective surface layer; 5. a first coating device; 51. a coating tank; 52. a paint roller; 53. rotating the attaching roller; 6. an embossing and curing device; 61. a compression roller; 62. a support roller; 63. a light strip; 64. a rotating cylinder; 641. a rotating shaft; 65. a fixed cylinder; 651. a fixed shaft; 652. mounting grooves; 7. a second coating device; 8. a surface curing device; 81. a leveling roller; 82. and (5) curing the roller.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.